Vitamin D intake and status in Irish elderly women and adolescent girls

Ir J Med Sci. Apr-Jun 2006;175(2):14-20. doi: 10.1007/BF03167942.


Aim: To assess vitamin D status during summer and winter in Irish girls and elderly women, and to estimate vitamin D intake in these two age-groups.

Methods: Ambulatory free-living, elderly Irish women (aged 70-76 years; n = 43) and girls (aged 11-13 years; n = 17) were recruited. Fasting serums were collected during August/ September 2002 and February/March 2003 and analysed for 25 (OH) D by HPLC.

Results: Mean daily intakes of vitamin D were 4.6 microg and 2.1 microg in elderly women and girls, respectively. Serum 25 (OH) D was significantly lower (P<0.001) during winter than summer in both age-groups. Eight (20%) and one (during late summer) and sixteen (37.2%) and eight (47%) (during late winter) of the elderly women and girls, respectively, had inadequate vitamin D status (serum 25 (OH) D <40 nmol/l).

Conclusion: Inadequate vitamin D status during winter time is quite common in elderly women and adolescent girls in Ireland.

MeSH terms

  • Adolescent
  • Aged
  • Child
  • Dietary Supplements
  • Female
  • Humans
  • Ireland / epidemiology
  • Longitudinal Studies
  • Nutritional Status
  • Parathyroid Hormone / blood*
  • Seasons
  • Vitamin D / administration & dosage
  • Vitamin D / analogs & derivatives*
  • Vitamin D / blood
  • Vitamin D Deficiency / blood
  • Vitamin D Deficiency / epidemiology*
  • Vitamins / administration & dosage*
  • Vitamins / blood*


  • Parathyroid Hormone
  • Vitamins
  • Vitamin D
  • 25-hydroxyvitamin D